13694481 has 16 divisors (see below), whose sum is σ = 20349120. Its totient is φ = 9102240.

The previous prime is 13694479. The next prime is 13694543. The reversal of 13694481 is 18449631.

It is not a de Polignac number, because 13694481 - 2¹ = 13694479 is a prime.

It is a super-2 number, since 2×13694481² = 375077619718722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13694381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12741 + ... + 13773.

It is an arithmetic number, because the mean of its divisors is an integer number (1271820).

Almost surely, 2^13694481 is an apocalyptic number.

It is an amenable number.

13694481 is a deficient number, since it is larger than the sum of its proper divisors (6654639).

13694481 is a wasteful number, since it uses less digits than its factorization.

13694481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533 (or 1527 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 13694481 is about 3700.6054909974. The cubic root of 13694481 is about 239.2481156680.

The spelling of 13694481 in words is "thirteen million, six hundred ninety-four thousand, four hundred eighty-one".